louis



(No Model.)

A. LOEHNBR.

SHAFT HANGER AND BOX.

Patented N0v. 29, 1881.

[12 venfor 7% .1. .ZQMLLZ UNITED STATES PATENT OFFICE AUGUST LOEHNER, on ST. LOUIS, MISSOURI, ASSIGNOR T0 LOEHNER & WOLFF, on SAME PLACE.

SHAFT HANGER AND BOX.

SPECIFICATION forming part of Letters Patent No. 250,088, dated November 29, 1881,

Application filed April 27, 1881.

To all whom it may concern:

Be it known that I, AUGUST LOEHNER, of the city of St. Louis, and State of Missouri, have invented a new and useful Improvement in Shaft Hangers and Boxes thereto, which improvement is fully set forth in the following specification, reference being had to the accom panying drawings, in which- Figure 1 represents a front view of my improved shal't hanger and box attached. Fig. 2 represents a side view of the same. Fig. 3 is a plan view of center piece of the hanger with box secured thereto, thelatter being modified in construction. Fig. dis aside elevation of the box, the construction being modified as indicated in Fig. 3. Fig. 5is an enlarged view, showing a vertical longitudinal section of box. Fig. 6 is an enlarged view, representing the center piece as provided with one projection to receive the box with the latter placed thereon. Fig. 7 represents detached views of one of the spring-rings and one of the plates used in connection in regulating the bearing of the shaft.

The object of my invention is to furnish a device of a shaft-hanger and appurtenances thereto which shall be readily adjustable to any desired line, elevation, or position, cause the least friction by giving the shaft an extended bearing, and prevent vibration in the movement of the shaft, self-lubrication being also effected with any kind of material used in smoothing the surfaces of boxes and shafts.

Referring to the drawings, A designates a foundation-plate securely fastened to beams above, and having a longitudinal dovetailed projection downward which fits in a corresponding groove in the hanger-plate B, on which is the hanger O, as shown. This dovetailed connection of the plates A and B allows a horizontal adjustment of the hanger, the plate B being pushed one way or the other along plate A, and; being secured in place, as desired, by means of the screws a. The plate Amay also be formed with a longitudinal groove or recess, 1), for each bolt- (see Figs. 1 and 2) to receive a nut, c, on the end of each screw-bolt a, the nuts sliding along in the groove 1) when the hangerplate is moved.

The hanger G is provided with a vertical cylindrical drop, I), with a screw-thread formed (No model.)

thereon, the drop being usually strengthened by a wrought-iron bar, d, cast within it, and

.which is large or small, according to the diameter of the drop required. On the drop D are placed two rings, E, which are threaded on the inside and movable upward or downward on the drop, the holes 6 being made to receive a rod for the purpose of turning the rings.

F is a hollow center piece to be placed on the drop D, the latter passing through it. The center piece is not threaded, but is movable on the drop, one of the rings E being above it and the other below, as shown in Fig. 2. One or more horizontal arms, f, project from the center piece to receive and support one or more of the shaft-holding boxes, or to shift one box in position,as desired. Each arm f iscylindrical,and has a groove, it, formed thereon to receive the point of an adjusting-screw.

The shaft-holding box G is made in two parts, which are secured together longitudinally at g by means of bolts t', the two parts being usually formed for coupling, as shown, and recessed in the middle, as indicated by L, for receiving and holding mica, graphite, lard, or other materials used for lubricating purposes. The passages for the shaft M in the ends of box G are made partially flaring outward, as shown, this being usually effected by boring out the ends of the box when the two parts of the same are fastened together. The object of this is to form the seats a for the conical sprii'ig-rings m, placed on the shaft for the purpose of regulating its bearings in the box G. As will be seen, the interior recess, L, extends nearly to the seatsn, asmall space usually being left straight along the shaft, as shown. The box has an opening leading to recess L for lubricating materials, the opening having a cover, 20, to exclude dust therefrom.

The box Gr, or the lower part thereof, is provided with a tubular part or socket, H, so that it may be placed on a projecting arm,f, of the center piece, F. When thus placed the box may be adjusted and secured in a horizontal position or at a desired angle on arm f by means of a screw, h,the point of which enters a groove, 7:, in the arm, thus allowing the shaft-holding box to be set at various inclinations.

The shaft M passes through the box G, and

is held in a central position therein by the two conical metallic rings m, which nicely encircle the shaft, bearing equally around it with the least friction, and avoiding vibrating and noisy movements. The box G is made as long as desired, and the rings m, bearingon the shaft at the extremities of the box, serve to steady the shaft and prevent its vibrating. Further, by this construction of box and rings, the latter tapering inwardly to an edge, shafts varying in diameter may be used, as the bearing will be long and the friction always the same, whatever the width or diameter of box. Each ring m hasaslit,s, in one side to allow the required compressionforadjustingthebearing,therings being pressed inward by means of the plates I and screw-bolts r, so as to close around and against the shaft within the seats n. As shown in the drawings, the plates I, one being held at each end of box Gr, have apertures through which passes the shaft M, and said plates may be forced inward to press against the rings m, or outward, as desired, by turning the screw- 'bolts 1" one way or the other, the said screwbolts entering threaded holesin the ends of the box G. To prevent the rings m turning with the shaft, the plates I are provided with small projections 12, which enter small grooves or notchesin the rings m, and thereby sustain them in position. Occasional lubrication oftherings m is effected through apertures 12, which are usually kept closed by pins, as shown.

In Figs. 3 and 4 is shown a modification in the construction of box G and connections, the box itself being provided with a threaded drop, D, to pass through a vertical cylindrical part, from which projects a socket, H, to receive one of the arms f, the socket having the adjusting-screw h, and the threaded rings 6 being used on the drop, as shown, to regulate the elevation and position of the box G. This form of construction is preferably used in some instances, as for the transmission of motion to miter and bevel wheels of different sizes and different angles, forbelt transmission from horizontal to vertical pulleys, or to use tighteningpulleys for belts.

I claim as my invention-- 1. In a shaft-hanger, the dovetail adjustable connection of plates Aand B, the plate A having the rabbeted recesses or slots b for the nuts on the bolts a to move in, substantially as set forth.

2. A shaft-hanger provided with a threaded drop, D, and threaded rings E, for regulating the elevation of a center piece on the drop, substantially as shown and described.

3. In a shaft-hanging device, a hollow center piece provided with one or" more projecting arms, in combination with and adjustable on a vertical drop, D, for the purpose set forth.

4. In a shaft-hanging device, a socket adjustable on a projecting arm,f,in combination with a vertical hollow part adj ustable on a vertical drop by means of the adjusting-rings E, substantially as shown and described.

5. In a shaft-hanger,a shaft-box adjustable by means of a vertical threaded drop with threaded rings thereon, as herein set forth.

6. In a shaft-hanger, a box, Gr, made in two parts. to be secured together, provided with recess L and flaring-seats n to receive the conical rings m, substantially as set forth.

7. In a shaft-hanging device, a box, G, in combination with the conical spring-rings m,

for regulating the shaft-bearing, substantially as set forth.

8. In a shaft-hanging device, a box, G, provided with the bearing-seats n, in combination with the conical rings m and plates 1, the latter being adjustable by means of screw-bolts, substantially as set forth.

9. In a shaft-hanger, a box, Gr, having a socket, H, adjustable on an arm, f, by means ofa screw, h, and groove 70 in armf, substantially as set forth.

AUGUST LOEHNER.

Witnesses:

EUGENE MAOBE'III, D. B. JOHNSON. 

